The BGS Lexicon of Named Rock Units — Result Details
Scottish Upper Coal Measures Formation
| Computer Code: | UCMS | Preferred Map Code: | UCMS |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Bolsovian Substage (CC) — Asturian Substage (CAS) | ||
| Lithological Description: | Sandstone, siltstone and mudstone in repeated cycles, most commonly fining upwards; argillaceous rocks commonly as structureless beds and seatearth; commonly reddish brown or purple due to oxidation of originally grey strata; some reddening may be primary. | ||
| Definition of Lower Boundary: | The conformable and transitional boundary from Middle Coal Measures is drawn at the base of the Aegiranum (Skipsey's) Marine Band. The original definition (MacGregor, 1960) placed the boundary at the top of this marine band. The revision was made by Forsyth et al (1996). | ||
| Definition of Upper Boundary: | Not known at outcrop due to unconformity beneath Permo-Triassic rocks. | ||
| Thickness: | Maximum thickness probably exceeds 750m under the Firth of Forth | ||
| Geographical Limits: | Midland Valley of Scotland. | ||
| Parent Unit: | Scottish Coal Measures Group (CMSC) | ||
| Previous Name(s): | Barren Red Measures [Obsolete Name and Code: Use UCMS]
(-1887)
Upper Coal Measures Formation [Obsolete Name And Code: Use PUCM, UCMS] (UCM) Upper Coal Measures (Scotland) (-585) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | Hallside Borehole (BGS Ref. No. NS65NE/66) between surface and 285m depth. | ||
| Reference(s): | |||
| Forsyth, I H, Hall, I H S and McMillan, A A. 1996. Geology of the Airdrie district. Memoir of the British Geological Survey, Sheet 31W (Scotland). | |||
| Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) | |||
| MacGregor, A G, 1960. Division of the Carboniferous on Geological Survey Scottish Maps. Bulletin of the Geological Survey of Great Britain, No.16, 127-130. | |||
| Waters, C N, Waters, R A, Barclay, W J, and Davies, J R. 2009. Lithostratigraphical framework for Carboniferous successions of Southern Great Britain (Onshore). British Geological Survey Research Report, RR/09/01. 184pp. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S040 S012 S015 S023 S031 S015 S011 S014 S023 S032 S030 S039 S041 | |||